Abstract: A seat belt webbing has a plurality of warp threads (1, 3), a weft thread (2) which runs from one edge of the seat belt webbing to the other edge, periodically reversing the direction in reversal points and is interwoven with the warp threads (1, 3).The weft thread (2) in the reversal points in an edge portion (B) is folded back forming a loop, and a catch thread (5) which is fed through the loops of the weft thread (2).The catch thread (5) is placed between the warp threads (1, 3) and is covered by the weft thread (2) and/or by the warp threads (1, 3) towards the surface of the seat belt webbing.

Abstract: A method for weaving a webbing, comprising at least one first right-hand weft thread and at least one second left-hand weft thread, characterized in that the two weft threads are introduced into the same shed from both sides of the webbing, are wound around weft thread retainers in weft change loops, are substantially retained by the weft thread retainers until shed change and are then stripped off from the left thread retainers by the reed and after shed change and are bound against the stop.

Abstract: The invention relates to a method for weaving a webbing, comprising at least one first (right-hand) weft thread and at least one second (left-hand) weft thread, characterized in that the two weft threads are introduced into the same shed from both sides of the webbing, are wound around weft thread retainers in weft change loops, are substantially retained by the weft thread retainers until shed change and are then stripped off from the left thread retainers by the reed and after shed change and are bound against the stop.

Abstract: The invention relates to a needle webbing machine which comprises two weft needles (2a, 2b) which work simultaneously and in opposite directions on both ribbon sides, in addition to knitting needles (28a, 28b) which are arranged on both ribbon sides. A yarn lifter (18a, 18b) which works individually and which is used to advance a weft thread (4a, 4b) to a weft needle (2a, 2b), which is open, is provided on each side of the ribbon in order to improve the production thereof.

Abstract: A needle loom is provided with a bearing structure (2), one textile-product (P) forming head (3) installed on the bearing structure (2), two heddle frames (6) capable of intercepting a plurality of warp threads (O), one sickle (9) to bring the two weft threads (T) transversely between the warp threads (O), two movable guides (11) each of which is adapted to intercept one of the weft threads (T), actuators (13) to shift the movable guides (11) and change the weft threads (T) carried by the sickle (9), one needle (18) to temporarily retain at least one of the two weft threads (T) carried by the sickle (9), and a reed (20) to compact the weft threads (T) against the already formed textile product (P). Two electric motors (21), each of which is connected to a respective guide (11) actively move the respective guide (11) in a first way (X) or in a second way (Y) along the predetermined direction (D), upon command of the respective motor (21).

Abstract: A needle loom comprises a supporting structure (2), at least one forming head (3) of a textile product (P) installed on the supporting structure (2), at least two heddle frames (6) capable of intercepting a plurality of warp threads (O), at least one sickle (9) to bring at least two weft threads (T) transversely between the warp threads (O), at least two movable guides (11) adapted each to intercept one of the weft threads (T), actuator means (13) to move the movable guides (11) and change the weft threads (T) carried by the sickle (9), at least one needle (18), to temporarily retain at least one of said at least two weft threads (T) carried by the sickle (9), and a reed (20) to compact the weft threads (T) against the already formed textile product. The actuator means (13) comprises at least two electric motors (21), connected each with a respective movable guide (11), to move each guide in a manner independent of the others.

Abstract: The invention relates to a narrow fabric needle loom, comprising a shedding device forming a shed, and a weft insertion needle (12) for at least one weft loop (14). A knitting needle (26) is provided on the discharge end (20) of the shed facing away from the feed end (18) of the weft insertion needle (12) and secures the weft loops (14) by meshing (22). A second knitting needle (36) that meshes (30) the loops is provided on the feed end (18) of the weft insertion needle (12). The knitting needles for the feed end (18) and the discharge end (20) are mounted so that they can be swiveled about the same rotational axis (47).

Abstract: A holes whereby the frame is adapted for receipt of foundation warp yarns of a fastener tape. A mandrel projects from the frame for shaping a thermoplastic resin monofilament into a fastener element. An anchoring-weft-yarn carrier bar and a foundation-weft-yarn carrier bar are both disposed below the mandrel. The apparatus also has a rotor with a monofilament guide hole wherein the rotor is revolvable or rotatable about the frame. An anchoring-warp-yarn heddle is disposed above the core cords and a foundation-warp-yarn heddle is disposed below the core cords. A hook lever is vertically movable and disposed before the foundation-weft-yarn carrier bar for pushing the outer core cords downward.

Abstract: A thread insertion needle for a ribbon weaving machine includes a needle body and a bracket, enclosing the needle body and having two parallel legs disposed on opposite sides of the needle body and forming with the needle body two slots, and a connector section connecting the two legs, with the connector being spaced from the needle body tip and defining with the body tip a free space for receiving therein filling threads for inserting them into a shed in addition to a filling thread received in the recess formed in the needle body tip.

Abstract: An apparatus for manufacturing a woven slide fastener stringer includes a first reed for beating a filling yarn through a shed of warp threads against the fell of a tape being woven and a second reed for beating a monofilamentary fastener element having successively interconnected convolutions in place along a longitudinal edge of the tape. The first and second reeds are actuated to alternate in their respective beating-up movements. The second reed is positioned to beat the element convolutions substantially centrally thereof away from their coupling head portions.

Abstract: The ribbon loom comprises a weft thread insertion needle arranged at one side of the warp threads for inserting at least one loop or bight of a weft thread into the weaving or loom shed formed by the warp threads. The weft thread insertion needle has a longitudinal slit throughout almost its entire length. The weft thread insertion needle is also provided with a hook which, exterior to the longitudinal slit, is located at least approximately in the plane of motion of the weft thread insertion needle and is oriented toward the thread guide for the weft threads. The tip or point of the hook is arranged in the proximity of the free end of the weft thread insertion needle and points toward such free end. This results in an especially slender design of weft thread insertion needle and a reliable engagement of the weft thread or threads on the hook solely by means of the thread guide without any supplementary or auxiliary device.

Abstract: An apparatus for manufacturing woven slide fastener stringers comprises means for shedding a plurality of warp threads, a coiling mechanism for coiling a monofilament of synthetic resin around a mandrel in a conical orbit to form a series of coiled coupling elements and a weft inserter reciprocable across the warp shed and the conical orbit for inserting a weft thread into the warp shed, by which the coiled coupling elements can be woven into a stringer tape along a longitudinal edge thereof as the tape is woven of the warp and weft threads. The weft inserter includes an arm which when the weft thread is inserted is engageable with the monofilament to displace the latter out of the path of insertion of the weft thread so that the weft thread can be inserted smoothly without being frictionally engaged by the monofilament.

Abstract: A ribbon loom has a reed drive, a weft-needle drive, an operating needle drive and a shed-forming drive. A main drive shaft carries discs and/or cam discs to which the first-mentioned three drives are directly and articulately coupled. An auxiliary drive shaft extends transverse to the main drive shaft and is connected to the shed-forming drive; it is coupled to the main shaft via a worm transmission the transmission ratio of which can be varied by replacing the worm wheel with a differently dimensioned one.

Abstract: An apparatus for manufacturing a slide fastener stringer including a woven stringer tape and a coiled fastener element woven into the tape along a longitudinal edge thereof. The apparatus comprises a plurality of harnesses for forming a shed of warp threads, a filling carrier for inserting a weft thread through the warp shed, a first reed for beating the weft thread in the shed against the fell of the tape, means for forming the coiled fastener element to be woven into the tape by the weft thread, and a second reed for beating successive coupling heads of the coiled fastener element one after another against a point which is in alignment with the fell of the tape. The second reed is operatively connected to the first reed so as to synchronize the beating action of the second reed with that of the first reed.

Abstract: A slide-fastener stringer is formed by weaving a weft in a warp and simultaneously forming a continuous coupling element along each of the confronting edges of a pair of tapes simultaneously produced by the weaving operation. The synthetic-resin monofilament forming the coupling element is passed around a mandrel between the warp stretches so that the heads of the two coupling elements are produced in interdigitated form. The ground weft yarn is carried from the coupling element side of each set of warps through the shed to the opposite edge of the tape where it is locked into other loops of previous passes of weft by knitting.

Abstract: A woven slide fastener is described consisting of two supporting tapes having a two-arm edge carrying a row of linking elements formed of a synthetic monofilament, the arms of the edge of each supporting tape converging at the point of insertion of the linking elements. There are further described a method and an apparatus for the manufacture of the tapes used in the slide fastener consisting in the use of a core around which the monofilament is bent so as to obtain a meander configuration during the manufacture of the woven supporting tape.

Abstract: A slide fastener comprises two continuous plastic filaments, each with a multiplicity of helicoidal coupling elements for interlocking with the elements of the opposite filament, each filament being woven integral with the threads of its respective support tape to form a single tape-like unit. Each coupling element has a coupling head on a loop end and a long shank and a short shank extending from opposite sides of the loop end. The long shank terminates in a first bight portion connecting it with a long shank of one adjacent coupling element, while the short shank terminates in a second bight portion connecting it with a short shank of another adjacent coupling element. The coupling elements are arranged in rows of mirror-image pairs, each including two long shanks and two short shanks. Warp threads are interwoven with the coupling elements, with even stronger bracing possible with bulbous projections on the long shanks, short shanks, first bight portions or second bight portions using textile weft threads.

Abstract: A loom for weaving a slide fastener element to a tape, the loom weaving two tapes, and a slide fastener element to each tape, simultaneously. The slide-fastener element is fed along with the warp ends to the weaving area, and undergoes simultaneous shedding movement with the warp ends. The filling needle is driven in an elliptical path through each successive warp shed. The eye of the needle, through which the filling passes, moves closely adjacent to the weaving point in the first half of its path and then moves distantly away from the weaving point in the second half of its path. Each pick of the filling thereby catches and binds the slide-fastener element at a location immediately adjacent to the weaving point.